AbstractThe total neutron cross section of113Cd has been measured in the energy range from 0.025 to 1 eV with a crystal spectrometer using the Be(101) and NaCl(200) crystal planes as monochromators. A new method for second-order correction was applied, and the resonance at 0.181 eV was fitted to a Breit-Wigner single-level formula by the method of least squares. The resonance parameters obtained from the analysis areE0= 0.181±0.003 eV,σ0= 7847±187 b,Γ= 0.1087±0.0033 eV, andΓn= (0.0791±0.0032)×10-3eV assuming that the statistical weighing factor isg= 3/4.